Spatially resolved spectroscopy of the outflow from the symbiotic Mira RX Puppis

We present and discuss long slit echelle spectra taken at various position angles in the nebula surrounding the symbiotic Mira RX Pup. The spectra wer e taken in the H alpha spectral region and are spatially resolved. The fact that the nebula shows up only in the [NII] lines has enabled us to subtrac t the underlying point source spectrum, showing clearly the spatio-kinemati c structure of the nebula. We confirm the presence of the elongated feature found by Paresce (1990) at PA=15 degrees, but not its high H alpha/[NII] ratio. We also find no evide nce for a jet, but a velocity decreasing with distance from the central obj ect. A new nebular structure is found at similar to 90 degrees to the main featu re. The split lines indicate a nebula expanding with velocities greater tha n or equal to 80 km s(-1), probably with a bipolar shape. Both nebulae are some 100s of times larger than the binary separation of RX Pup.